Answer:
Similiarly, in the same way, in like manner, likewise, by the same token
Explanation:
These all show comparison, unless you have a specific laragraph that I should be reading. These are general comparison words or wording.
Presentation aids are visual methods of clarifying ideas and illustrating the message. So, your answer would be A.
Hope this helps!
The correct plural form of echo is echos or echoes. Either way it is grammarly correct. I believe that echoes is the correct form.
echoes